Improvement in apparatus for casting composition rollers



M. F. BINGHAM. V APPARATUS FOR CASTING comrbsi'rxou ROLLERS.

No.182,547, Patented Sept.26,1876.

L: WITNESSES M I @nmw v A A' vENTOR.

N.PETERS. PHOTO-LITHOGRAPHER, WASHINGTON, D c.

UNITED STATES PATENT OFFICE.

MILIiABD' F; BINGHAM,1 OF NEW YORK, N. Y.

IMPR'O VEMENTJN APPARATUS FOR CASTING COMPOSITION ROLLERS.

Specification forming part of Letters Patent No. 182,547, datedSeptember 26, 1876 applicationfiled February 9, 1876.

Toall whom it may concern Beit known that I, MILLARD F. BING-HAM, of thecity, county, and State of New York, have invented, made, and applied touse Improvements in the Construction of Apparatus forGasting'Uomposition Rollers for Printers and that the following is afull, clear, and correct description of my inven tion, reference beingbad to i the accompanying drawing making part of this specification, andtothe letters of reference markedthereon, in which Figure 1 is a sideview of myimpro-ved apparatus for castingprinters rollers. atop view ofthe same. Fig. 3 is a cross-section of the same. I

In the drawing, like parts of the invention are indicated by thesameletters of reference. I

The nature of the present invention consists in certain improvements,asmore fully hereinafter described, in the constructionof apparatus forcasting composition rollers for printers; the object of theinvention-being thev construction of apparatus for the purpose setforth, by which i printers composition rollers can be moreexpeditiouslyand cheaply made,

whileat the same timea better article results.

To enable thoseskilledinthe artsto make and use mywinvention, I willdescribe the con" struction and operation of the same.

A-shows slotted standards .for supporting the roller-receptacle of myapparatus. These standards are secured or fastened to: thefloor of theapartment in which therollers are to be cast, or upon a platform restingupon the same. B shows the receptacle in which the molds G, to receivethe roller-stocks to be covered with composition, are placed. Thisreceptacle B is formed of a section of a cylinder having attached to itthe top plate or head and bottom plate, through openings in which topand bottom plates the roller-molds C have their bearings. The receptacleB is also provided with a removable bottom, D, hinged to the same, so asto be easily removed therefrom, the object of which will be more fullyhereinafter described. This bottom D is so constructed that when placedin position upon the under side of the receptacle B the lower ends ofthe molds 0 will be closed, and for this purpose I propose to use arubber packing secured upon the interior of the removable Fig. 2 isbottom D. The receptacle B has aprojeoting rim or flange, I), attachedupon its exterior surface, upon which rest two circular platesor collarsof metal, 0 0 between which are pinned a series of rollers, 11,havingtheir bearingupon the exterior of the receptacle B, and to whichare fastened the spindles e for supporting the receptacle B in theslotted stand ards or uprights A. From the exterior of the receptacle Balso projectstuds, uponwhichare therollers f, free to revolve thereon,and having their bearingupon the upper side of the upper collar 0. Uponone of the spindles e is secureda ratchet-wheehg, and to the end of thisspindle is attached the crank or handle h. An eye, i, is secured aboutcentrally in the top-plate of the receptacle B. l is an inlet-pipe intheireceptacle B, :for the introduction of steam into the same; m, aninlet-pipe,

for the introductionof water into the same; a

and n, anexit-pipefl'or the-water fromthe receptacle B. 1

tion to be poured into the molds G to formthe rollers, and which hook Grengages with the eye 6 when the receptacle B is to be raised or lowered.

Such being theconstruction, the operation may be thus described:Thereceptacle B having had inserted in it the molds (J, in which therollers are to be cast, is inserted in the slotted portions of thestandards or uprights A, the spindles e resting in the same, thereceptacle B occupying a vertical position, as shown in Fig. 3 ofthedrawing, and being retained in such position by a ratchet, 0, pivotedto the upper portion of one of the standards A, and engagingwith theratchet-wheel g. In this position the receptacle B is turned by thecrank h from the vertical into a horizontal position by disengaging theratchet 0 from the ratchet-wheel g, and after the receptacle B has beenplaced in this horizontal position, depressing the ratchet 0 until itengages with the ratchet-wheel g, and serves to hold the receptacle inthis horizontal position.

In this position the molds G are oiled or greased, so that after beingcast the rollers may be easily delivered from the molds O. The stocks tobe covered are placed in position within the molds O, and the removablebottom D is hinged to the receptacle B.

The ratchet 0 is then released from contact with the ratchet-wheel g,and the receptacle B is brought back into the vertical position itoriginally occupied by turning the handle h, and secured therein by theratchet 0 engaging with the ratchet-wheel g.

It will be found advantageous before the pouring operation to introducea current of steam into the receptacle B through the inletpipe Z, sothatthe chill may be taken off the molds, and the same to a certain extentbe warmed or heated. The kettle H, containing the melted composition, ofwhich the rollers are to be formed, is now attached to the hook G" uponthe end of the rope or chain F, and by means of the Windlass is raiseduntil it is brought over the receptacle B. With the kettle H in thisposition the receptacle B, provided as it is with the rollers f, andencircled by the collars c c supporting the roller d, may be readilyrevolved by the hand of the operator until each one of the molds G hasbeen brought into the proper position relativelyto the kettle H to befilled with composition from it.

After all the molds C have been filled a current of cold water may beintroduced into the receptacle B through the pipe m, and passed throughthe same, and allowed to flow off through the pipe 12. This will havethe effect of hastening the hardening or solidifying of the compositionintroduced into the molds 0.

.At the proper season the receptacle B may be turned from the verticalposition into the horizontal position, as herein alreadyset forth, andsecured in this position, the bottom D being unhinged and disconnectedfrom the receptacle, and the rollers drawn from or forced out of themolds 0 held in the receptable B.

By the use of an apparatus constructed as described, the process ofcasting printers roll ers is not only expedited, but the cost of sodoing is lessened, and a better roller-results.

Having now set forth my invention, what I claim as new is 1. In anapparatus for casting printers composition rollers, an oscillatingreceptacle, B, provided with a removable bottom, D, in combination withthe slotted standards A, constructed and operating substantially as de-'scribed, for the purposes set forth.

2. In an apparatus for casting printers com position rollers, arevolving receptacle, B, pro-.

vided with a removable bottom, D, in combination with the slottedstandards A, constructed and operating substantially as and for thepurposes set forth.

3. In an apparatus for casting printers composition rollers, thecombination, with the re ceptacle B, provided with a removable bottom,D, of the inlet-pipes l and m for the introduction of steam and water,and the exit-pipe n for the Water, for the purposes fully set forth.

4.. In an apparatus for casting printers com-v position rollers, thecombination, with the slotted standards A, of the receptacle B, havingupon it the flange b, and provided with v a removable bottom, D, thecollars c 0 to which are attached the spindles e, the ratchet-wheel g,and ratchet 0, substantially as and for the purposes indicated.

5. In an apparatus for casting printers composition rollers, thecombination, with the slotted standards A, of the receptacleB, havingupon it the flange b, and provided with a removable bottom, I), thecollars c 0 rollers 61, and rollers f, substantially as and for thepurposes set forth.

MILLARD F. BINGHAM;

In presence of A. SIDNEY D'OANE, J os. E. HE LEY.

